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An ONOS SDN application to support host mobility across multiple wireless LAN (WLAN) access points while preserving IP/DHCP information

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============================================================================= === === === sdnWLAN POC Application === === ===

=== Revision History ===

Version: 2.0.91-SNAPSHOT Date: 3/19/2016 Changes: o Cleanup of package names (convert to net.bcsw) o Update to build under 1.6.0-SNAPSHOT of ONOS o First push to github repository. See commit notes for any further revision information after this initial commit.


Version: 1.0.1-SNAPSHOT Date: 9/16/2015 Changes: o Worked on cli (one simple command, no auto-complete yet...) o Worked on REST interface (GET list of APs, POST & DELETE not tested)


Version: 1.0.0-SNAPSHOT (also coded in pom.xml version property) Date: 9/15/2015 Changes: o Initial checking of simple framework. o Stubs for CLI, Config File, and REST provisioning added o Tested 'config file' skeleton and it worked o CLI not wired in completely (TODO) o Have not tested REST commands yet

============================================================================= === Building and Running ===

This section outlines how to build, install, activate, and test this ONOS application. These should always apply to the latest checked-in code. If You need to run with an older configuration, please check the revision history in perforce.


Building

Open a terminal and change your directory to the ROOT location for this application (this is where this file is located) and enter the following command:

$ mvn clean install ( or the shortcut: mci )


Installing

The best way to install and test the application is to set up a cell file in your ${ONOS_ROOT}/tools/test/cells directory and use the 'cell' command to source the file. For this example, create a file name 'wvlan-poc' in that directory with the following contents (change the IP addresses and any username/group as is appropriate).

################################################################
# BCSW sdnWLAN POC test cell

ONOS_CELL=sdnwlan-poc

# the address of the VM to install the package onto
export OC1="192.168.0.14"

# the default address used by ONOS utilities when none are supplied
export OCI="192.168.0.14"

# the ONOS apps to load at startup
export ONOS_APPS="openflow,proxyarp,gui"

# pattern to specify which addr to use for inter-ONOS node communication
#(not used with single-instance core)
export ONOS_NIC="192.168.0.*"

export ONOS_USER=stack
export ONOS_GROUP=stack
#
################################################################

Save the file and then issue the following command:

$ cell sdnwlan-poc

Once that is set, each time you build and want to install the new image, issue the following command:

$ onos-app $OC1 install target/bcsw-apps-sdnwlan-1.0.1-SNAPSHOT.oar

or $ onos-app $OC1 reinstall target/bcsw-apps-sdnwlan-1.0.1-SNAPSHOT.oar

(replace the version number as needed)

If you wish to install and immediately activate the application, issue the following command (exclamation point after install/reinstall command) :

$ onos-app $OC1 install! target/bcsw-apps-sdnwlan-1.0.1-SNAPSHOT.oar

or $ onos-app $OC1 reinstall! target/bcsw-apps-sdnwlan-1.0.1-SNAPSHOT.oar


Running

If you have a JSON configuration file, you may need to manually copy it to your ONOS machine to the following directory: /opt/onos/config

Once you have installed, you may need to start the by issuing the following commands:

$ onos $OC1
...
onos> app activate net.bcsw.sdnwlan
onos> ^D    (to exit)

Once the application is running, start up the mininet script (make sure you set the OpenFlow controller IP address to point to your ONOS installation) by issuing the following command:

$ sudo python ./mobility.py


REST API

The REST API is rooted at /bcsw/sdnwlan and currently supports listing (GET) of configured Access Points. Until a unique identifier for an AP is defined, the creation or selective listing of an Access Point is not yet supported. Some sample code is written as a placeholder but it has not been tested at all.

To list all sdnWLAN Access Points, use the following curl command:

$ curl --user onos:rocks  sdan-onos:8181/bcsw/sdnwlan/list

============================================================================= === Debugging ===

For more information please refer to: https://wiki.onosproject.org/display/ONOS/Debugging+ONOS+with+IntelliJ+IDEA

You may also want to log into your machine/VM with ONOS and modify the /opt/onos/options file and make sure 'debug' is listed on the line with ONOS_OPTS

=============================================================================

============================================================================= Notes after this point are deprecated and will eventually be cleaned up

TODO: Add information on how to build and deploy

TODO: Look into how to obfuscate the code (via mvn) if this will not be open sourced

TODO: Update comment headers of all files with appropriate license information

================================

Initial idea for objects/interfaces:

AP Manager - manages list of AP objects REST interface for configuration (future) Config file reader/writer. For first demo and easy way to seed if no REST is available Backs info to persistent storage and for cluster sharing

AP Impl - An individual AP List of CIDR's that this AP manages. Fixed default GW? List of mobile hosts NB/SB flow provider (which to use) Geo coordinates. For UI and possibly for range calculations to limit pre-created flows

Mobile Host - An individual host Ref back to home AP Ref to current AP Stats Ref to NB/SB flow

NB / SB Flow - Interface from which specific Imples are created. Mainly for test purpose so we can swap out various impls for testing. Should have stats interface. Rx/Tx, active time?, ...

CLI - A cli interface for configuring would be good. Can we tie into the wipe-out command for quick scrubbing

REST interface - For as much as makes sense. Config file - JSON file. Useful for demo/test purposes Properties - A few global values may be needed but would be nice to tweak Default NB/SB flow to use Poll or timeout value defaults Enable/disable/control range calculating for pre-create of flows

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An ONOS SDN application to support host mobility across multiple wireless LAN (WLAN) access points while preserving IP/DHCP information

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